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15 July 2022 Analysis of detection of weak signals in distributed fiber grating sensing systems
Ruili Chang
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Proceedings Volume 12258, International Conference on Neural Networks, Information, and Communication Engineering (NNICE 2022); 1225821 (2022) https://doi.org/10.1117/12.2639133
Event: International Conference on Neural Networks, Information, and Communication Engineering (NNICE 2022), 2022, Qingdao, China
Abstract
In recent years, with the rapid development of science and technology, the progress of fiber optic sensing technology is also relatively significant. In this paper, we design a circuit that can be used to amplify and detect weak signal photoelectric detection and processing by amplifying the differential input and zeroing the output, expanding the adjustable secondary, and doing a good job of power conversion, low-pass filtering and data acquisition, and then use the relevant software to carry out simulation experiments, showing that the designed circuit can effectively detect the nW-level optical signal The circuit is widely used because of its good overall linearity and anti-interference capability.
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Ruili Chang "Analysis of detection of weak signals in distributed fiber grating sensing systems", Proc. SPIE 12258, International Conference on Neural Networks, Information, and Communication Engineering (NNICE 2022), 1225821 (15 July 2022); https://doi.org/10.1117/12.2639133
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KEYWORDS
Signal detection
Sensing systems
Fiber optics sensors
Demodulation
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